20519954

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3637}}^1$

素因数の和:3690

約数の個数: 32

約数和(自身を含む): 39115776

約数和(自身を除く): 18595822

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 91, 182, 217, 403, 434, 806, 2821, 3637, 5642, 7274, 25459, 47281, 50918, 94562, 112747, 225494, 330967, 661934, 789229, 1465711, 1578458, 2931422, 10259977, 20519954]

約数ペア:

[(1, 20519954), (2, 10259977), (7, 2931422), (13, 1578458), (14, 1465711), (26, 789229), (31, 661934), (62, 330967), (91, 225494), (182, 112747), (217, 94562), (403, 50918), (434, 47281), (806, 25459), (2821, 7274), (3637, 5642)]